Fix editing single objects when batchMultiEdit() is enabled

[JonnyWong16]

Description

Editing a single object while batchMultiEdits() was enabled caused the edit to be added to the batch. This change fixes it so editing a single object does not affect batch editing. See #1475 for discussion.

Fixes #1475

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated the docstring for new or existing methods
• I have added tests when applicable